Grain-separator.



-mxwwmm L. DE vos @L A. P. SANDERS.

GRAIN SBPARATOR.

APPLIGATION FILED JULY 17I 1913.

1,083,437., Patented Jan-.6,1914.

4 SHEETS-SHEET 1.

L. DE VOS & A. F. SANDERS. GRAIN SEPARATOE.

APPLIGATION FILED JULY 17,1913.

L- Patented Jan. 6, 1.9m..y

' 4 SHEETS-SHEET 2.

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. L. DE VOS & A. F. SANDERS.

GRAIN SBPARATOR.

APPLIUATION FILED JULY 17,1913.

1,083,431, Patented Jan. 6, 1914.

4 SHEETS- SHEET 3.

Wiftmeooeo X-mlmlumu 55 I L. DE vos @L A. P. SANDERS.

GRAIN SEPARATOR. APPLIGATION FILED JULY 17,1913.

L?. Pateted Jan. 6, 1914.

M 4 SHEETS-SHEET 4.

f '.14 ,6- 44 22/ da "2 4' lilmw I UNITED STATES PATENT oEEicE., f

LEOPOLD DE VQS AND ANTON F. SANDERS, 0F MINNEOTA,l MINNESOTA.

GRAIN-SEPARATOR.

Specification of Letters Patent.

PatentedlJan. 6, 1914.

of Lyon and State of Minnesota, havev inI vented certain new and usefulImprovements in Grain-Separators; and We do declare the following to bea full, clear, and exact description of the invent-ion, such as willena-'ble others skilled inthe art to which it appertains to make and usethe same.

This invention relatesl to improvements in grain lseparators andparticularly to means for separating wild oats from cultivated oats andother grain.

One object of the invention is to provide a machine of this characterhaving an improved construction and arrangement of separating mechanismand improved means for removing the wild oats from the separating apronof the machine without injuring the apron.

A further object is to improve the separator shown in United StatesPatent No. 1,053,791 granted to us February 18, 1913 whereby thismachine is rendered more etticient in operation.l

. With these and other objects in view, the invention consists ofcertain novel features of construction, and the combination andarrangement of parts .as will be more fully described and claimed.

ln the accompanying drawings: Figure 1 is a side view of one side of ourimproved grain separator; Fig. 2 is a similar view of the opposite side;Fig. 3 is a front end view;

Fig. 4 is a rear end view; Fig. 5 is a central vertical longitudinalsectionof the. machine; Fig. 6 is a similar viewtalren on the line (3*6of Fig. 3; Fig. 7 is `a top plan view of the machine wit-h the. feedhopper removed; Fig. 8 is a perspective view of the agitating frame forthe separating apron.

Our improvedv grain separator comprises an apron supporting frame 1consisting of parallel side bars 2 connected at their lower ends by across bar 3 which rests on the floor and supports this end of the frame.The opposite or upper ends of the frame 1 are secured to the upper endsof standards 4 which support the frame 1 at the proper inclination. Theframe l is further connected to the standards 4 at their lower ends byinclinedvbrace bars 5 the upper ends of which project above the sidebars 2 for a purpose hereinafter described. The side bars 2 ofApplication filed July 17, 1913. Serial N0. 779,577;

the frame 1 are connected intermediate their ends by crOss bars 6 towhich is secured an inclined platform 7 lwhich supports the upvperstretch of the separating apron herelnafter described thus preventinthis stretch of the apron from sagging or ecominguneven.

Revolubly mounted in suitable bearings on the upper ends of thestandards 4 is an upper apron supporting and operating roller 8 a lowerapron supporting roller 9 being revol'ubly mounted invsuitable bearingson the lnner sides ofthe side bars 2 near the lower end thereof as`shown. Engaged with the rollers 8 and -9 and adapted to travelaround theplatform 7 is an endless separating apron 10 which is constructed offabric having a nappy surface to which bearded grain such as wild oatswill adhere. Fixed on one end of the shaft of the upper apronsupportldrive shaft 14 is a combined crank Wheel Iand pulley 16 having acrank handle 17 ywhereby the same and the shaft 14 are revolved to movethe apron 10 in the proper direction. 7

Secured tothe side bars 2 of the frame 1 and projecting above the sameis a hopper supporting frame 18 in which is arranged a feed hopper 19having an inclined bottom 20 and a rear side 21 which is adjustable tospace the lower ,edge thereof a greater or less distance from the loweredge of the bottom whereby the width otA the discharge opening in thebottom of the hopper is regulated to permit'the grain to feed more orless rapidly from the hopper.

Loosely supported on the hopper frame 18 b v links or hangers 22 is agrain separating shoe 23 comprising lan upper inclined plate 24 and alower inclined plate 25. The plates 24 and 25 are spaced a suitabledistance apart and secured at their ends to triangular end pieces havingtheir apices disposed at the front end of the shoe whereby `the upperplate iriclines forwardly toward the lower plate and terminates at itslower edge a short distance from .the adja bil dll

a discharge space through which the grain passes from the upper plateonto the lower plate 25 which inclines rearwardly toward the separatingapron and from which the grain is evenly distributed and discharged ontothe separating apron. Secured to the lower cross bar at the front end ofthe shoe is a transversely disposed inclined tailings trough 26 whichextends across the machine and is designed to receive the tailings -andcoarse material which are caught by a screen 27 arranged on the shoe andspaced a suitble distance .above the upper plate 24 thereof and ontowhich the grain falls when discharged from the hopper. The grain passingthrough the screen falls onto the upper plate 24 of the shoe and slidesdown the same onto the lower plate and from this plate is dischargedonto the separator apron as hereinbefore described.

The shoe'23 and screen 27 are agitated or kept continually in motion bya suitable shaking mechanism which preferably comprises a bell cranklever 28 which is ivoted on a bracket 29 secured to one of t e side barsof the apron supporting frame as shown. One end of the bell crank lever28 has a pivotal connection with the rear cross bar 30 of the shoe 23while the other arm of the lever is loosely connected by a linlr oroperating rod 3l the forward end of which is loosely connected withV awrist pin 32 which is arranged eccentrically on the driving pulley 33 ofa blast fan hereinafter described3 said. pulley B3 being connected by abelt 34 with the main driving pulley lli hereinbelore described. 'lhecrank action of the wrist pin 32 will rock or oscillate the bell cranklever 28 which' in turn will shake, or agitate the shoe 23 thus lreepingthe grain thereon in motion and causing the grain to pass down the upperand lower plates and screen thereoi' as will be readily understood.

Alrranged on the rea/r cross bar 30 of theA shoe are a series of grainagitating loops 35 which project upwardly through the discharge openingof the hopper and which are agitated by the movement of the shoe andthus prevent the grain in the hopper from becoming paclred and chokingor clogging the discharge opening thereof.

Mounted ou the apron supporting frame l is lan casing 36 the dischargeopening' of which is disposed immediately below the rear edge of thelower plate of the shoe so that the air blast created by the :tan 3'?which is revolubly mounted in said casing will be discharged. upon thegrain as the latter falls from said lower plate 25 onto the separatingapron, thus blowing out or removing the chad7 and light particles offoreign matter from the grain. rllhe fan 37 is lined on an operating'shat 38 revolubly mounted the ends of the fan casing and noemer on oneend of each is fixed the drive pulley 33 hereinbefore described.

Arranged between the lower ends of the side bars 2 of the apronsupporting frame is a lower grain separating shoe compris-4 ing a frame39 on which is arranged a screen 40 and which is loosely supported nearits forward end by short links or hang ers 41 which are connected to theinner side of the side bars 2.. At its rear end the frame 39 isconnected by links 42 to the lower ends of short agitating levers 43which are pivoted midway between their ends to the inner sides of theside bars 2. The levers 43 are pivotally connected at their lower endsto the right angular inwardly extending lower ends of pitman rods 44 theupper ends of one of which is loosely connected with the wrist pin 82 onthe pulley 33. The pitman rod 44 on the opposite side of the machine isconnected at its upper end to a wrist pin 45 eccentrically arranged. ona beater operating pulley 46 which is ixed on this end of the fan shaftand is thereby operated. By thus connecting the frame 39 of the lowershoe with the pulleys 33 and 46 on the tan shaft said shoe will beagitated so that the grain discharged onto the screen 40 from the lowerend of the apron will be nally cleaned and thoroughly separated fromimperfect or inferior grain which will pass through the screen while theperlectfgrain will be discharged from the lower edge of the screen andmay be caught by a conveyer or any suitable receptacle provided toreceive the same. n

Arranged over the platform of the separating apron and below the upperstretch of the latter is an apron agitating frame comprising side bars47 which are connectednear their upper and lower ends by cross rods 48,said rods being designed to strike against the inner faces of the upperstretch of the apron as the latter passes along over the platformthereby agitating or shalring'the upper stretch of the 'apron andkeeping the grain thereon in motion. The side bars of the agitatingframe are pivotally connected near their lower ends to the upper ends ofthe short agitating levers Ll-lwhile said'side bars 4'? are connected attheir upper ends-by links 49 with supportin blocks 50 having lthereinlongitudinal s ots 5l which receive clamping bolts 52 arranged inbrackets 53 secured to the upper ends of the side bars 2 of the apronsupporting'frame as shown. By sliding the blocks 50 upwardly ordownwardly on the clamping bolts 52 the inclination of the linlrs 49 andlevers 43 is corres ondingly varied and the apron agitating iiiaine willbe raised or lowered thus bringing the same nearer to or farther fromthe upper .stretch of the apron which will cause said frame MOU ltd

n 50 in their adjusted positions for supporting the agitator frame atthe desired elevation. By connectin the lower end of the `agitatingframe w1th the agitating levers 43 it will be seen that when said leversare rockedl by the pitman rods 44, that the cross rods of the agitatinframe will be brought into and out of forci le engagement with the upperstretchof the apron7 thus keeping the latter v agitated and the grainthereon in motion.

The grain when discharged onto the apron in the manner described iscarried downwardly thereby and all except the wild oats and beardedgrain is discharged at theflower end of the apron onto the screen 40 ofthe lower separating shoe. The wild oats and other bearded grain willadhere to the rough surface lofthe conveyer apron and will be therebycarried around ,and back up on the lower stretch of the apron from thesurface of which the vbearded grain hangs down and is supported by the-bearded ends thereof which have obtained a firm attachment with theroughened surface of the apron. In order to remove the bearded grainwhich has thus become attached to the apron We provide a rot-ary beater55 comprising a supporting shaft 56 on which are fixed ra lallyprojectin arms 57 which are connected at their en s by beater bars 58.The bars 58 are secured to the ends of the arms 57j at a suitable anglefor engaging and knocking the wild oats and other bearded grain from thelower-stretch of the apron asgthe grain is brought around in position tobe engaged by the beater.

The' shaft56 of the beater is revolubly mounted in suitable bearing bars59 connected to the standards 4 and side bars 21 of` the apron frame andon one end of the shaft 56 is fixed a small pulley 60 which is connectedby a belt to the beater operating pulley 46 fixed on the adjacent end ofthe fan shaft as hreinbefore described. By thus connecting the beaterwith the fan shaft the movement of the latter will be imparted to thebeater to revolve the same in the proper direction for removing the wildoats from the apron in the manner described and without injuring thelatter.

From the foregoing description taken in connection with the accompanyingdrawings, the construction and operation of the invention will bereadily understood without requiring amore extended explanation.

Various changes in the form, proportion, and the minor details ofconstruction may be resorted to without departing from the principle orsacrificing any of the advantages of the invention as claimed.

Having thus described our invention, what we claim is:

A grain separator comprising a supporting frame a separating apronoperatively mounted therein, an apronagitating frame comprising sidebars, rods connecting said bars and adapted to be brought into forcibleengagement with lthe lower face of the upper stretch of the apron,levers pivotaly connected to the apron supporting frame and having apivotal connection at their upper ends with .the side bars of said apronagitating frame, longitudinally slotted supporting blocks having anadjustable connection with said supporting frame, links connecting theupper ends of the apron agitating frame with said blocks whereby theupper end of the frame is adjustably supported with respect to the upperstretch of the apron.

In testimony whereof we have hereunto set our hands in presence of twosubscribing witnesses.

Witnesses CHARLES FOULON7 PETE SANDERS.

